Please check your email for the verification action. You may continue to use the site and you are now logged in, but you will not be able to return to the site in future until you confirm your email address.
Kinematicalignment has increased in popularity over the last few years in an attempt to improve clinical outcomes following total knee arthroplasty (TKA). In our unit kinematicalignment has been used with patient-specific cutting guides as part of on-going clinical trials. We performed a retrospective analysis on all the TKA which had been planned to be implanted outside of the mechanical axis (0° ± 3°) based on pre-operative MRI scans and looked at their radiographic and clinical outcomes. We identified 21 knees which had been implanted as ‘planned outliers’. All had clinical and radiographic follow up to a mean 11.6 months post op. All had a standard long leg alignment radiograph performed at 6 weeks post op to confirm alignment. All patients had a good improvement in their Oxford Knee Scores with mean improvement from 23 pre-op to 42 at 1 year. Of our patients none had a poor clinical outcome due to the alignment of their TKA, 1 patient had a poor outcome because of a quadriceps rupture which occurred 4 months post-op. There were no post-operative radiographic abnormalities. In our unit kinematicalignment outside of the mechanical axis is not associated with an increased rate of short term complications